a learning both sound in theory and practice
It is a Chinese idiom. Pinyin is n è ISH è NGW à IW à ng, which means having the talent and virtue of a saint on the one hand and being able to carry out the kingly way on the other. This is the political thought of Taoism. It comes from Zhuangzi · Tianxia.
The origin of Idioms
Zhuangzi · Tianxia written by Zhuangzi in the pre Qin period and Zhuangzi in the Zhou Dynasty: "it's the way of inner sage and outer king. It's dark but not clear. It's melancholy but not clear. The people in the world are what they want, and they take their own way."
Idiom usage
In Ming and Li Zhi's four book reviews University: "true knowledge, true economy, with this book."
Chinese PinYin : nèi shèng wài zhǔ
a learning both sound in theory and practice
distinguish right from wrong. shì fēi fēn míng
recuperate and build up energy. yǎng wēi xù ruì
great straightness seems crooked. dà zhí ruò qū
exercise one's inventive mind. jiàng xīn dú yùn
each refused to give in to the other. gè bù xiāng ràng
hold up one 's head high and advance by long strides. áng shǒu kuò bù